How to find out what is the purchase price keyed in Initial Quantity

Dear Experts,

The stock valuation is Standard Costing.

Before this, someone else keyed in initial quantity and the purchase price in the Initial Quantities module.

Now when I issued a PO to a vendor (price list tagged with Last Purchase Price), the price shown is different.

How do I find out if the price keyed in initial quantity is correct or not? Any tables I can refer to?

I tried to track from the Inventory Posting List and the smartlink only bring me to the journal entry for the initial quantity posting. I don't have the details like item no., qty, price.\

Thanks in advance.